WebOct 1, 2024 · Moreover, phenanthro [1,10,9,8- opqra ]perylene-7,14-dione (PPQ) and further derivatives were detected for the first time in the fossil record, representing intermediates … WebDec 1, 2005 · Abstract Hypericin, a naturally occurring hydroxylated phenanthroperylene dione, is used as a powerful photosensitizer for photodynamic therapy as well as a diagnostic tool for the fluorescence detection of flat neoplastic lesions in the bladder of patients. Both applications are based on the tumouritropic characteristics of the compound.
phenanthroperylene C32H18 ChemSpider
WebNov 2, 1999 · Hypericin and stentorin are the most important representatives of the phenanthroperylene quinones. Their tautomerism, dissociation, conformation, and association equilibria make them structurally complex, and they are interesting on the one hand for medical applications (for example, photodynamic th … WebA microwave-assisted synthesis of phenanthroperylene quinones as exemplified with hypericin. Stefan Aigner, H. Falk; Chemistry, Biology. 2008; The synthesis of hypericin, one of the most important phenanthoperylene quinones used in photodynamic therapy, could be highly improved by using either a microwave-assisted dimerization of … try99.99
Synthesis, in vitro cellular uptake and photo-induced ... - PubMed
WebMay 5, 2010 · Introduction. Polycyclic aromatic hydrocarbons (PAH), which are formed in the incomplete combustion of organic matter, are commonly found in polluted air and … WebDec 8, 2009 · The promising photosensitizing properties of hypericin, a substituted phenanthroperylene quinone naturally found in Saint John's wort, has led to the proposal that it can be utilized in photodynamic therapy. Structurally modified derivatives are at the present time being investigated to generate a more effective hypericin photosensitizer. WebMar 18, 2024 · We investigate vapor-deposited glasses of a phenanthroperylene ester, known to form an equilibrium hexagonal columnar phase, and show that liquid crystal-like order can be manipulated by the choice of deposition rate and substrate temperature during deposition. We find that rate-temperature superpos … try98